40 mm Bicycle Stems
Stem length is measured from the center of one clamp to the center of the other clamp. This measurement is sometimes known as the reach or extension.
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Showing 120 products:
Industry Nine A35 Stem, 35 x 40mm, +/-8d, Gold
BuyPART NUM 952467
7075 domestically sourced aluminum is machined, anodized and assembled in North Carolina 180 degree clamp wrap with high strength 316 stainless … read more
In Store
Industry Nine SA35GG40
Ships Freeyour price $155.00 + ships free
BuyPART NUM 952467 
Truvativ Descendant 35mm Clamp Stem 0mm Rise 40mm Length for 1-1/8" Steerer Black BuyPART NUM 429586
Built strong to take on the world's toughest trails, Descendant stems keep you pointed in the right direction. Item Specifications Bar … read more
Two remaining at this price8% offretail $65.00 your price $59.99 + ships free
BuyPART NUM 429586 
E*thirteen Base 35 Stem, 35 x 40mm, Black BuyPART NUM 457827
A 35mm clamp is ideal strength to weight ratio, integrated T25 hardware with rounded heads prevents injury Item Specifications steerer … read more
your price $49.95 + ships free
BuyPART NUM 457827 
Renthal Apex 35 Stem: 35mm Clamp, 1-1/8" Steerer, 40mm Length, +/- 6 degree, Black/Gold
5 of 5
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5 of 5 stars
( 1 review )
BuyPART NUM 638633
Combining All Mountain strength, Enduro stiffness and XC weight savings, this stem is ideal for any type of riding style. The unique 240 degree, two-piece … read more
5 of 5
( 1 )
5 of 5 stars
( 1 review )
popular$9 offretail $140.45 your price $130.95 + ships free
BuyPART NUM 638633 
Industry Nine A35 Stem - 40mm 35mm +/- 8 Degree Aluminum Black BuyPART NUM 324697
Taking name and shape from the A-axis in I9's five-axis machining centers, the A35 is an all-mountain stem utilizing a 35mm bar diameter and demonstrating … read more
your price $155.00 + ships free
BuyPART NUM 324697 
Whisky No.7 MTN Stem 40mm 31.8 0 Degree Black
BuyPART NUM 601487
No.7 Mountain stems offer a stout connection for modern mountain bars. They match the simple aesthetic of other Whisky cockpit components. 3D-forged … read more
Lowest Priceyour price $48.00 + ships free
BuyPART NUM 601487 
TruVativ Hussefelt Stem 40mm 0deg 31.8 1-1/8 Black
5 of 5
( 1 )
5 of 5 stars
( 1 review )
BuyPART NUM 251355
TruVativ Hussefelt Mountain Stems feature forged 6061-T6 aluminum construction. Forged AL-6061-T6 construction Height = 50mm, 315 grams for 60mm … read more
5 of 5
( 1 )
5 of 5 stars
( 1 review )
your price $43.00
BuyPART NUM 251355 
Race Face Turbine-R Stem, (35.0) 0d X 40mm - Black BuyPART NUM 150928
Rebranded Easton Haven stem, CNC machined aluminum with laser etched logos 4-bolt face plate, opposing 2-bolt steerer clamp. 138g (50mm) … read more
your price $109.99 + ships free
BuyPART NUM 150928 
Reverse Base Stem, 25.4 x 40mm, Black BuyPART NUM 354447
Stable, light and shapely CNC machined 6061-T6 aluminum for All Mountain, Enduro and Slopestyle 145g (25.4mm) Item Specifications … read more
18% offretail $64.99 your price $53.49
BuyPART NUM 354447 
Sun Bicycles Trike Quill Stem 25.4 x 205mm
5 of 5
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5 of 5 stars
( 1 review )
BuyPART NUM 232296
Alloy Trike Stem Size : (25.4 x 205mm QUILL x 40mm Ext 25.4mm Clamp) Color: Silver … read more
5 of 5
( 1 )
5 of 5 stars
( 1 review )
your price $21.98
BuyPART NUM 232296 
Industry Nine A318 Stem, (31.8) 40mm - Silver BuyPART NUM 171546
7075 domestically sourced aluminum is machined, anodized and assembled in North Carolina 180 degree clamp wrap with high strength 316 stainless … read more
your price $145.00 + ships free
BuyPART NUM 171546 
Renthal Apex Stem: 31.8, 1-1/8, 40mm Reach, +/- 6 degree
5 of 5
( 1 )
5 of 5 stars
( 1 review )
BuyPART NUM 324497
Renthal Apex Stems. The Renthal Apex combines All Mountain strength, Enduro stiffness and XC lightweight that makes this stem the perfect choice for any … read more
5 of 5
( 1 )
5 of 5 stars
( 1 review )
your price $140.45 + ships free
BuyPART NUM 324497 
Sunlite TCO Piston 2-Bolt Clamp
5 of 5
( 2 )
5 of 5 stars average
( 2 reviews )
BuyPART NUM 265176
Forged alloy body EN CITY safety certified Type: Road Quill Quill Diameter: 22.2mm Stem Length: 40 Bar Clamp: 25.4 … read more
5 of 5
( 2 )
5 of 5 stars average
( 2 reviews )
your price $17.79
BuyPART NUM 265176 
Thomson Elite X4 Mountain Stem 40mm +/- 0 degree 31.8 1-1/8" Threadless 
4 of 5
( 2 )
4 of 5 stars average
( 2 reviews )
BuyPART NUM 751094
Thomson X4 Mountain Stems feature smooth edges for carbon bar compatibility and use bolts that are custom heat treated with corrosion preventative plating. … read more
4 of 5
( 2 )
4 of 5 stars average
( 2 reviews )
your price $114.95 + ships free
BuyPART NUM 751094 
Ritchey RL-1 4-Axis Stem (31.8mm Clamp, 40mm), Black
BuyPART NUM 389948
With its unique faceplate design, the Ritchey 4-Axis stem was a game-changer when it was first released many years ago. Today, the OE 4-Axis-44 stem … read more
your price $29.95
BuyPART NUM 389948 
Renthal Duo Stem: 40mm 10 Degree 31.8mm 1-1/8" Black / Gold
4 of 5
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4 of 5 stars average
( 2 reviews )
BuyPART NUM 741150
Made in Cheshire, UK CNC machined from 6082 T6 aluminium alloy Split stem design for maximum weight reduction U-shape cradle clamp eliminates handlebar … read more
4 of 5
( 2 )
4 of 5 stars average
( 2 reviews )
your price $132.95 + ships free
BuyPART NUM 741150 
Race Face Aeffect-R Stem, (35.0) 0d X 40mm Black
5 of 5
( 1 )
5 of 5 stars
( 1 review )
BuyPART NUM 327762
Forged and machined 6061 aluminum 4-bolt face plate, opposing 2-bolt steerer clamp Item Specifications steerer dia.: 1-1/8" bar … read more
5 of 5
( 1 )
5 of 5 stars
( 1 review )
your price $64.99 + ships free
BuyPART NUM 327762 
Industry Nine A35 Stem, 35mm x 40mm, Silver 
Info
7075 domestically sourced aluminum is machined, anodized and assembled in North Carolina 180 degree clamp wrap with high strength 316 stainless … read more
your price $145.00 + ships free
Info 
Industry Nine A318 Stem, (31.8) 40mm - Blue BuyPART NUM 792048
7075 domestically sourced aluminum is machined, anodized and assembled in North Carolina 180 degree clamp wrap with high strength 316 stainless … read more
your price $145.00 + ships free
BuyPART NUM 792048 
Industry Nine A35 Stem, (35.0) 40mm - Pink BuyPART NUM 950615
7075 domestically sourced aluminum is machined, anodized and assembled in North Carolina 180 degree clamp wrap with high strength 316 stainless … read more
your price $155.00 + ships free
BuyPART NUM 950615 
"Whisky Parts Co. makes high quality carbon components designed with unique features that help you do more with your bike and stand out from the rest. We believe that our work can help every rider find a new level of confidence and performance with our sturdy and lightweight forks, bars, rims and more. So whether you are building a new bike or upgrading one you already have, you'll find an uncommon attention to detail in every product we offer."
"Every year bikes change, styles and trends evolve, old bikes are in need of repairs and new bikes are waiting for that personal touch. We provide the means to keep your bike on the road and fun to ride!"
Thomson is leading with innovative design for two primary markets - aerospace and cycling.
"Ritchey bicycle components have been raced to victory in some of the biggest cycling competitions in the world including the UCI World Championships, the Tour de France and the Olympics and it all began in a simple garage in Menlo Park, California with Tom Ritchey.'
Dimension makes quality components to repair or custom-fit the vast majority of bikes being ridden today, and provide the accessories that make them fun to ride.
"We move forward with a desire to deliver the best possible components to our customers and a determined spirit of competition."
"At Salsa, we believe a sense of adventure makes life better. The bicycle can be so much more than just a bike; it's a path to new places, new people, and amazing experiences."
We define color as the main color of the item. It may have accents or highlights in other colors.
In Store products are available to view in our showroom. In Store orders usually ship the same or next business day.
These models are available for online purchasing and can be shipped directly to you.
Bar clamp diameter is the diamater of the handlebar.
Stem length is measured from the center of one clamp to the center of the other clamp. This measurement is sometimes known as the reach or extension.
S.H.I.S clamp diameter is the steerer tube diameter.
Stem angles are measured perpendicular to the clamp. For example, a 90 degree stem is straight. Sometimes, this may also be refered to as a 0 degree stem. If two measurements are listed, the stem can be flipped for angling up or down.
Stem Type
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